Changes for page End Device Frequency Band

Last modified by Edwin Chen on 2024/10/21 20:35
<
From version < 10.1 >
edited by Xiaoling
on 2022/05/30 10:39
To version < 18.1
edited by Edwin Chen
on 2024/10/21 20:35
Change comment: There is no comment for this version

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Author
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1 -XWiki.Xiaoling
1 +XWiki.Edwin
Content
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1 1  (% class="wikigeneratedid" id="HEndDeviceFrequencyBand" %)
2 - **Contents：**
2 + **Table of** **Contents：**
3 3  
4 4  {{toc/}}
5 5  
... ... @@ -8,33 +8,32 @@
8 8  
9 9  = 1. Introduction =
10 10  
11 +
11 11  This page list the default frequency band for Dragino End Devices. The frequency bands are base on TTN Frequency Bands. User can modify upgrade firmware to support different frequency band or use AT Command to change the sub band in some frequency bands.
12 12  
13 13  * TTN Frequency Band Settings: [[https:~~/~~/www.thethingsnetwork.org/docs/lorawan/frequency-plans.html>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]]
14 14  * Frequency Bands vs Country List : Page 11 of [[LoRaWAN Regional Parameters RP2-1.0.3>>url:https://resources.lora-alliance.org/technical-specifications/rp2-1-0-3-lorawan-regional-parameters]]
15 15  
16 -
17 -
18 18  = 2. OTAA Join Behaviour =
19 19  
20 -For 005 LoRaWAN stack: to save battery, once boot, device will make first make 200 tries for OTAA Join, the time period of two Join Requests will depends on the DR and the airtime requirement. After this 200 Join finish, device will send a join request every 20 minutes. If device reboot, it will do above loop again.
19 +Since 005 LoRaWAN stack: One device boot or reset, it will
21 21  
22 -(((
23 -For 005 LoRaWAN Stack:
24 -)))
21 +* First make 200 Join Requestes for OTAA Join, the interval of two Join Requests will depends on the DR and the airtime requirement.
22 +* After 200 Join Requestes, if end node still not join successful, to save battery life, it will keep sending join request at the default uplink interval ( 20 minutes) .
23 +* If device reboot, it will do above loop again.
25 25  
26 -* EU868 OTAA Join DR select. SF7->SF8->SF9->SF10->SF11->SF12; Each 3 attempts and then loop
27 -* US915 and AU915 OTAA Join procedure,. End node by default will use all 72 channels to join and it will be set to use the proper sub-band after Join success
25 +Since 005 LoRaWAN Stack:
28 28  
27 +* **EU868 OTAA Join DR Logic**. SF7->SF8->SF9->SF10->SF11->SF12; Each SF will make 3 attempts and then loop
28 +* **US915 and AU915 OTAA Join procedure**,. End node by default will use all 72 channels (All sub-bands) to join and it will be set to use the proper sub-band after Join success
29 29  
30 -
31 31  = 3. Default Frequency Bands =
32 32  
33 -
34 34  == 3.1 AS923 ==
35 35  
36 36  === 3.1.1 Notice for AS923 Frequency Bands ===
37 37  
36 +
38 38  (((
39 39  Since [[RP002-1.0.1LoRaWAN Regional Parameters>>url:https://lora-alliance.org/sites/default/files/2020-02/rp_2-1.0.1.pdf]], AS923 include three different default settings for different countries: AS923-1, AS923-2 and AS923-3.
40 40  )))
... ... @@ -46,6 +46,8 @@
46 46  
47 47  === 3.1.2 AS920-923 & AS923-925 : AS923-1 (AS923) ===
48 48  
48 +
49 +* **Countries**: Malaysia,
49 49  * Default Uplink channel:
50 50  ** 923.2 - SF7BW125 to SF10BW125
51 51  ** 923.4 - SF7BW125 to SF10BW125
... ... @@ -71,9 +71,9 @@
71 71  ** Uplink channels 1-8 (RX1)
72 72  ** 923.2 - SF10BW125 (RX2)
73 73  
74 -
75 75  === 3.1.3 AS923-2 ===
76 76  
77 +
77 77  * Default Uplink channel:
78 78  ** 921.4 - SF7BW125 to SF10BW125
79 79  ** 921.6 - SF7BW125 to SF10BW125
... ... @@ -84,9 +84,9 @@
84 84  ** Uplink channels 1-8 (RX1)
85 85  ** 921.4 - SF10BW125 (RX2)
86 86  
87 -
88 88  === 3.1.4 AS923-3 ===
89 89  
90 +
90 90  * Default Uplink channel:
91 91  ** 916.6 - SF7BW125 to SF10BW125
92 92  ** 916.8 - SF7BW125 to SF10BW125
... ... @@ -97,9 +97,9 @@
97 97  ** Uplink channels 1-8 (RX1)
98 98  ** 916.6 - SF10BW125 (RX2)
99 99  
100 -
101 101  === 3.1.5 AS923-4 ===
102 102  
103 +
103 103  * Countries : Israel
104 104  * Default Uplink channel:
105 105  ** 917.3 - SF7BW125 to SF10BW125
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110 110  ** Uplink channels 1-8 (RX1)
111 111  ** 917.3 - SF10BW125 (RX2)
112 112  
113 -
114 114  == 3.2 AU915-928(AU915) ==
115 115  
116 +
116 116  **Before [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]** , Default use CHE=2
117 117  
118 118  * Uplink:
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154 154  Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
155 155  )))
156 156  * (((
157 -Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
158 +Use the Join successful sub-band if the server doesn't include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
158 158  
160 +
159 159  
160 160  )))
161 161  
162 162  == 3.3 CN470-510 (CN470) ==
163 163  
166 +
164 164  Used in China, Default use CHE=1
165 165  
166 166  * Uplink:
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184 184  ** 508.1 - SF7BW125 to SF12BW125
185 185  ** 505.3 - SF12BW125 (RX2 downlink only)
186 186  
187 -
188 188  == 3.4 EU863-870 (EU868) ==
189 189  
192 +
190 190  * Uplink:
191 191  ** 868.1 - SF7BW125 to SF12BW125
192 192  ** 868.3 - SF7BW125 to SF12BW125 and SF7BW250
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207 207  
208 208  == 3.5 IN865-867 (IN865) ==
209 209  
213 +
210 210  * Uplink:
211 211  ** 865.0625 - SF7BW125 to SF12BW125
212 212  ** 865.4025 - SF7BW125 to SF12BW125
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216 216  ** Uplink channels 1-3 (RX1)
217 217  ** 866.550 - SF10BW125 (RX2)
218 218  
223 +Gateway has below eight channels in IN865 bands.
219 219  
225 +* 865.0625 - SF7BW125 to SF12BW125
226 +* 865.4025 - SF7BW125 to SF12BW125
227 +* 865.6025 - SF7BW125 to SF12BW125
228 +* 865.9850 - SF7BW125 to SF12BW125
229 +* 866.1850 - SF7BW125 to SF12BW125
230 +* 866.3850 - SF7BW125 to SF12BW125
231 +* 866.5850 - SF7BW125 to SF12BW125
232 +* 866.7850 - SF7BW125 to SF12BW125
233 +
220 220  == 3.6 KZ865 ==
221 221  
236 +
222 222  * Uplink ~-~- 125Khz , DR0 - DR5
223 223  ** 865.1
224 224  ** 865.2
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230 230  ** The RX1 receive window uses the same channel as the preceding uplink.
231 231  ** The RX2 receive window uses a fixed frequency and data rate. The default parameters are 866.7MHz / DR0 (SF12, 125 kHz)​
232 232  
233 -
234 234  == 3.7 KR920-923 (KR920) ==
235 235  
250 +
236 236  * Default channel:
237 237  ** 922.1 - SF7BW125 to SF12BW125
238 238  ** 922.3 - SF7BW125 to SF12BW125
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251 251  ** Uplink channels 1-7(RX1)
252 252  ** 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
253 253  
254 -
255 255  == 3.8 MA869 ==
256 256  
271 +
257 257   Country: Morroco
258 258  
259 259  * Uplink:
... ... @@ -271,14 +271,15 @@
271 271  ** Uplink channels 1-9 (RX1)
272 272  ** 869.525 - SF12BW125 (RX2 downlink only)
273 273  
274 -
275 275  == 3.9 US902-928 (US915) ==
276 276  
291 +
277 277  Used in USA, Canada and South America.
278 278  
279 279  
280 280  === 3.9.1 Before [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]. ===
281 281  
297 +
282 282  Default use CHE=2, Subband 2
283 283  
284 284  * Uplink:
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304 304  
305 305  === 3.9.2 Latest firmware, Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]] ===
306 306  
323 +
307 307  (((
308 308  There is an issue if the end node is fixed at sub-band2. The sensor won't be able to register to other sub-band and can only work for the LoRaWAN server use sub-band2 , such as TTN. To solve this, the user needs to use a USB-TTL adapter to connect to the end node to manually set the sub-band which is very inconvenient.
309 309  )))
310 310  
311 311  (((
312 -
329 +So since **Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]**, we have improved this, the end node will use frequency 1 from sub-band1, then frequency 1 from sub-band2, then frequency 1 from sub-band3, etc to process the OTAA join. In this case, the end node can support LoRaWAN servers with different subbands. To make sure the end node will only transmit the proper sub-band after OTAA Joined successfully, the end node will:
313 313  )))
314 314  
315 -(((
316 -So since **Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]**, we have improved this, the end node will use frequency 1 from sub-band1, then frequency 1 from sub-band2, then frequency 1 from sub-band3, etc to process the OTAA join, In this case, In this case, the end node can support LoRaWAN servers with different subbands. To make sure the end node will only transmit the proper sub-band after OTAA Joined successfully, the end node will:
317 -)))
318 -
319 319  * (((
320 320  Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that subband
321 321  )))
... ... @@ -322,10 +322,48 @@
322 322  * (((
323 323  Use the Join successful sub-band if the server doesn't include subband info in the OTAA Join Accept message ( TTN v2 doesn't include)
324 324  
338 +
325 325  
326 326  )))
327 327  
328 328  = 4. Frequency Bands for different server =
329 329  
344 +
330 330  * TTN Frequency Band Settings: [[https:~~/~~/www.thethingsnetwork.org/docs/lorawan/frequency-plans.html>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]]
331 331  * Loriot [[https:~~/~~/docs.loriot.io/display/LNS/Regional+Frequency+Plans>>url:https://docs.loriot.io/display/LNS/Regional+Frequency+Plans]]
347 +
348 +
349 += 5. Subband Related questiones in US915, AU915, CN470 bands. =
350 +
351 +
352 +Frequency band US915, AU915 and CN470 supports totally 72 frequency in 8 sub-bands, Normally Gateway only support 8 channels ( one subband). So how does the gateway and end nodes work in such frequency?
353 +
354 +
355 +== 5.1 Set Subband in Gateway. ==
356 +
357 +
358 +* If Gateway choose (% style="color:blue" %)**Semtech UDP packet**(%%) forwarder to Connect to LoRaWAN server. User need to manually set the match Subband in the gateway web UI.
359 +
360 +* If Gateway choose (% style="color:blue" %)**Basic Station Mode**(%%) to connect to the LoRaWAN server. User can set the subband in the Server side and gateway will the correct subband from server. no need to set this in gateway. AWS-IoT, TTN, ChirpStack all supports Basic Station Connection.
361 +
362 +== 5.2 Set Subband in End Node ==
363 +
364 +
365 +* In early End Node firmware, it is pre-set to subband 2 , user need to manually set to proper subband if they don;t use subband 2.
366 +
367 +* In new end node firmware , it supports all sub-bands, and will swtich to the proper subband after OTAA join. So user can use the end node with all sub-band.
368 +
369 +Reference: [[How it affects the OTAA Join when end node is set to support all subbands>>http://wiki.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H13.WhyittakeslongertimeforOTAAjoinedinUS9152FCN4702FAU915band3F]]?
370 +
371 +
372 += 6. Data Rate and TXP auto-adjust logic. =
373 +
374 +In below cases the sensor end node will auto-adjust. (ADR must set to 1)
375 +
376 +* Auto-just according to the server ADR request change downlink command.
377 +* If there is no adr_req_ack arrive the sensor end node for more than 64 uplinks, end node will set the output to maximum power (AT+TXP=0).
378 +* If there is no adr_req_ack arrive the sensor end node for more than 96 uplinks, end node will reduce the Data Rate by 1.
379 +
380 +
381 +
382 +

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